T/JSP 04-2025 Active Group standards

T/JSP 04-2025 Determination of metal element content in graphene powder using inductively coupled plasma emission spectroscopy

Publish Date: 2025-01-13 Implement Date: 2025-01-17 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/JSP 04-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Synthetic materials

ICS Name: Physicochemical analysis methods

Publish Date: 2025-01-13

Implement Date: 2025-01-17

Scope

Scope: This document describes the method for determining the content of aluminum, titanium, chromium, manganese, iron, cobalt, nickel, copper, zinc, and molybdenum in graphene powders by inductively coupled plasma optical emission spectrometry (ICP-OES). This document is applicable to the determination of the content of aluminum, titanium, chromium, manganese, iron, cobalt, nickel, copper, zinc, and molybdenum in graphene powders. The determination ranges for each element are shown in Table 1. For the determination of metal elements in other carbon-based materials, such as carbon nanotubes and carbon fibers, this document can be referenced. Main technical content: The excellent optical, electrical, and thermal properties of graphene materials make them highly valuable for applications. Graphene powders are currently the main form of graphene materials. The types and concentrations of impurity elements in graphene powders directly affect their performance and applications, therefore, it is necessary to develop accurate and reliable standardized testing methods for their determination. Inductively coupled plasma optical emission spectrometry (ICP-OES) is a common technology for metal element measurement and is widely used in the detection of metal elements in various materials. The challenge in developing ICP-OES-based analysis for graphene powders lies in sample processing. There are three main difficulties in the processing of graphene powders: (1) Dispersibility issues: Graphene materials have poor dispersibility in polar acid solutions and tend to float on the liquid surface, resulting in insufficient contact with the solvent and difficulty in effectively releasing impurity components; (2) Low content issues: The metal impurity content in graphene materials is usually very low. Insufficient sampling volume will lead to an increase in the detection limit, which cannot meet the requirements of quality control; (3) Difficulty in dissolving carbon materials in